Ownness [eigenheit] includes in itself everything own... But ownness has not any alien standard either, as it is not in any sense an idea like freedom, morality, humanity, and the like. It is only a description of the - owner.

Given the book's premise, the polarized 1-star/5-star reviews on its Amazon page are hardly surprising, and, I would argue, don't really provide much information about book's content. There is, however, a ready guide available for understanding its real value--one that I've touched on in another context before--its used price: 1 cent.